<header>Default database type</header>

<center><tt>default_database_type</tt></center>
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This parameter specifies the default database type to use in
<tt>postalias(1)</tt> and <tt>postmap(1)</tt> commands. On many UNIX systems
the default type is either <tt>`dbm'</tt> or <tt>`hash'</tt>. The default is
determined when the Postfix system is built.


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